| PartNumber | AT87C58X2-SLRUM | AT87C58X2-RLTUM | AT87C58X2-3CSUM |
| Description | 8-bit Microcontrollers - MCU 32K 40MHz | 8-bit Microcontrollers - MCU OTP C58/32K 40MHZ 5V COM TEMP | 8-bit Microcontrollers - MCU C72X2 C52 0.5 m X 2 OTP 0.5 NV |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Mounting Style | SMD/SMT | SMD/SMT | Through Hole |
| Package / Case | PLCC-44 | VQFP-44 | PDIL-40 |
| Core | 80C51 | 80C51 | 80C51 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Product | MCU | - | - |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 500 | 800 | 216 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Unit Weight | 0.084185 oz | - | - |
| RoHS | - | Y | Y |
| Series | - | 87C | 87C |
| Maximum Clock Frequency | - | 60 MHz | 60 MHz |
| Program Memory Size | - | 32 kB | 32 kB |
| Data RAM Size | - | 256 B | 256 B |
| ADC Resolution | - | No ADC | No ADC |
| Number of I/Os | - | 32 I/O | 32 I/O |
| Operating Supply Voltage | - | 5 V | 5 V |
| Minimum Operating Temperature | - | - 40 C | - 40 C |
| Maximum Operating Temperature | - | + 85 C | + 85 C |
| Height | - | 1.45 mm | 4.95 mm |
| Length | - | 10.1 mm | 53.21 mm |
| Program Memory Type | - | EPROM | EPROM |
| Width | - | 10.1 mm | 14.73 mm |
| Interface Type | - | UART | UART |
| Number of Timers/Counters | - | 3 Timer | 3 Timer |
| Supply Voltage Max | - | 5.5 V | 5.5 V |
| Supply Voltage Min | - | 4.5 V | 4.5 V |